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STMicroelectronics LIS2DUx12

Ultralow-power accelerometer with (Qvar for LIS2DUXS12), (AI for LIS2DUX12), anti-aliasing & motion detection

The LIS2DU12, LIS2DUX12 and LIS2DUXS12 are smart, digital, 3-axis linear accelerometers whose MEMS and ASIC have been expressly designed to combine the lowest current consumption possible with features such as always-on anti-aliasing filtering. LIS2DUX12 and LIS2DUXS12 operate with a finite state machine (FSM) and machine learning core (MLC) with adaptive self-configuration (ASC). LIS2DUXS12 offers analog hub / Qvar sensing channel helping to define a new degree of system optimization.

Key features

Supply voltage range from 1.62 V to 3.6 V
Ultralow power consumption
Different embedded sensors
Small package

Additional features

Supply voltage range from 1.62 to 3.6 V with independent IO supply
Four operating power modes (for LIS2DUX12 and LIS2DUXS12)
Ultralow power consumption
Low noise down to 181 µg/√Hz (220 μg/√Hz for LIS2DUX12 and LIS2DUXS12)
±2g/±4g/±8g/±16g full scales
ODR from 1.6 Hz to 800 Hz
Embedded temperature sensor
Embedded machine learning core (for LIS2DUX12 and LIS2DUXS12)
Programmable finite state machine (for LIS2DUX12 and LIS2DUXS12)
Integrated analog hub / Q_var sensing channel (for LIS2DUXS12)
Embedded FIFO: up to 512 samples of accelerometer and temperature data in high resolution or up to 768 samples of acceleration data at low resolution
High-speed I²C/SPI/MIPI I3C^® digital output interface
Embedded digital functions (free-fall, wake-up, single/double-tap recognition (triple tap for LIS2DUX12 and LIS2DUXS12), activity/inactivity, 6D/4D orientation)
Advanced pedometer, step detector and step counter (for LIS2DUX12 and LIS2DUXS12)
Significant motion detection, tilt detection (for LIS2DUX12 and LIS2DUXS12)
Self-test
Small package: 2.0 x 2.0 x 0.74 (max) mm LGA 12-lead
10000 g high shock survivability
ECOPACK and RoHS compliant

Applications

Wearable devices (wristband and smart watches)
Game controllers
Hearing aids and portable healthcare devices
True wireless stereo
Wireless sensor nodes
Motion-activated user interfaces: screen rotation, tap, double tap
Asset trackers

Available tools

STEVAL-SMARTAG2:

NFC dynamic tag sensor and processing node evaluation board

The STEVAL-SMARTAG2 is an NFC-enabled sensor node with inertial MEMS sensors and environmental sensors, an STM32 microcontroller, and a dynamic NFC tag for communication with NFC readers, such as tablets and smartphones.

DATASHEET

STEVAL-MKI109V3: Professional MEMS tool: ST MEMS adapters motherboard based on the STM32F401VE and compatible with all ST MEMS adapters
STEVAL-MKI222V1: LIS2DU12 adapter board for a standard DIL 24 socket (fully compatible with the STEVAL-MKI109V3 motherboard or X-NUCLEO-IKS01A3)
STEVAL-MKI238A: LIS2DUX12 adapter board for a standard DIL 24 socket (fully compatible with the STEVAL-MKI109V3 motherboard or X-NUCLEO-IKS01A3)
STEVAL-MKI235KA: LIS2DUXS12 adapter kit for standard DIL24 socket with QVAR functionalities (fully compatible with the STEVAL-MKI109V3 motherboard, X-NUCLEO-IKS01A3 or STEVAL-MKI235A)